How to find replacement body parts for your semi-truck

To find replacement body parts for your semi-truck, work through four steps in order: identify what kind of body part you actually need, pin down the make, model and model year, confirm fitment against the VIN, and plan for freight shipping, because Class 8 body panels are oversized. Most ordering mistakes happen in the first two steps, not at checkout.

This guide covers body parts for Class 8 tractors - hoods, fenders, bumpers, fairings, doors and mirrors. It does not cover pickup body panels or box, dump and service bodies.

We have been supplying aftermarket body parts for Class 8 trucks since 2012, and this is the same sequence our order desk uses every day.

What "truck body parts" means: three different categories

Identify what kind of truck body part you need

The most common terminology mix-up here is between truck body parts and a truck body. On a Class 8 tractor, body parts are the exterior panels of the truck itself. A truck body is a separate structure mounted on a chassis - a box, a dump bed, a service body - built by a body manufacturer, not the truck OEM. If your part is on a mounted body, look for the body data plate and its Body Serial Number, the truck VIN will not identify it.

On a Class 8 truck, we count these as body parts, hoods and hood components, fenders and trims, bumpers and bumper hardware, fairings, side panels and steps, grilles, emblems and chrome trim, doors and mirrors, grille guards, mud flaps and quarter fenders.

Find your make, model and model year

Model year matters more than visual similarity. Manufacturers run mid-cycle refreshes that move brackets, cutouts and fastener locations while leaving the shape almost untouched. Body panels that look identical across a model refresh usually do not share mounting points. "It looks like mine" is not a fitment check.

The generations that cause the most ordering errors are those with a close-looking predecessor. Freightliner Cascadia has run through several updates, and hood and fairing hardware differs between them - see our Freightliner Cascadia parts collection. Kenworth T680 and T680 Next Gen are separate platforms for body purposes; Next Gen components sit in the Kenworth T680 Next Gen parts collection. Peterbilt 579 and the 2022-and-newer 579 differ the same way - see the  Peterbilt 579 2022+ parts collection. Volvo VNL, International LT625 and Mack Anthem follow the same pattern. Take make, model and year off the door jamb.

Confirm fitment with the VIN

The VIN is the only reliable way to confirm a body panel matches your specific truck. Find it on the driver's door jamb, the driver's side frame rail, and the title and registration.

The VIN confirms the build: model year, plant, series and factory configuration. It does not tell us which side you need, and it will not account for changes made after the truck left the factory. So along with the VIN, specify the side - driver or passenger - and the configuration details that change the part number: fog light cutouts, air flow deflector provisions, mirror mounting style, and the fairing variant for your sleeper length. A day cab and a 72-inch sleeper do not share a side fairing.

Semi-truck body parts by category

Hoods and Hood Components

A hood is the most expensive single body panel on most Class 8 tractors, and it is rarely the whole hood that fails. Latches, hold-down hardware, hinges, air intake grilles and hood rests are all replaceable separately. Replace the component when the shell is sound and the damage sits at a mounting or wear point; replace the full hood when the fiberglass is cracked through or the mounting area is deformed. See hoods and hardware in our Freightliner truck parts collection.

Fenders, hood fenders and fender trims

Fenders take the first hit from road debris, curbs, tire failures and winter chemicals, so they are the panel shops replace most. Class 8 hood fenders are usually fiberglass or composite: light and rust-proof, but prone to stress cracking around bolt holes after an impact. Extensions, trims and brackets sell separately, so damaged trim does not force a full fender purchase. Check the mounting flange - a crack there means replacement. See fenders in our Volvo VN, VNL and VNR parts collection.

Bumpers and bumper components

The key point on bumpers: you usually do not need the whole bar. Mounting brackets, end caps and corners, center sections and air flow deflectors sell as individual components, so a truck that clipped a curb often needs one corner and a bracket. Chrome, painted steel and composite bumpers use different mounting hardware, so confirm how your truck was built. Bumper components are in our Peterbilt truck parts collection.

Fairings, side panels and steps

Aerodynamic fairings are not cosmetic: a cracked or sagging side fairing changes airflow along the tractor-trailer gap and costs fuel. Chassis fairings, cab extenders, side skirts, lower panels and steps sit low and get hit by curbs, tire debris and snow banks. Fairing part numbers depend on sleeper length and chassis configuration, so this is where the VIN check matters most. See fairings and steps in our  semi truck fairing panels and deflectors collection.

Grilles, emblems and chrome trim

Grilles, surrounds, hood emblems, letter sets, headlight bezels and visor trim are replaced for appearance more often than function - but a broken grille also stops protecting the radiator and charge air cooler. Emblems and trim are model-specific and often discontinued in dealer channels, which is where an aftermarket supplier helps. Browse hood emblems and trim in our semi truck logo emblems collection.

Doors and mirrors

Doors, door skins, handles, hinges, seals, window regulators, mirror heads, arms and brackets round out the exterior. Mirrors are the highest-turnover item here: they get clipped in yards, at fuel islands and in tight docks. Heated and non-heated heads are not interchangeable, and arm mounting differs across model refreshes, so confirm heat and turn signal options before ordering. Door and mirror components are in our  International truck parts collection.

Grille guards and front-end protection

Worth doing the math before your next animal strike: a deer or elk hit at highway speed typically means a new hood, headlights, grille and bumper, often a radiator or charge air cooler, plus days out of service. A grille guard costs a fraction of that, which is why many Pacific Northwest owner-operators run one year-round. We stock grille guards for all major makes, including Herd grille guards, EX-Guard and Kozak.

Splash guards, mud flaps and quarter fenders

In most states, spray suppression systems are regulated and inspected during vehicle checks; consequently, mud flaps, brackets, side fairings, and polyurethane extensions are relevant to regulatory compliance. They also protect the panels behind them: the absence of a side fairing allows stone chips to strike fairings and fuel tanks directly. These are inexpensive parts that prevent damage to costly components. See mud flaps and hardware in our semi truck mud flaps and accessories collection.

New aftermarket vs used body panels

Salvage yards and classified listings show up in almost every search for truck body parts, so the trade-off is worth stating plainly. Used panels offer a lower price and, occasionally, parts no longer produced for older trucks - a real advantage on a truck nobody makes panels for.

What you take on with a used Class 8 panel: corrosion in the mounting areas, invisible until the panel is off the truck; fiberglass fatigue from a previous impact; hidden repair work under paint; a color that will not match without a respray; no warranty; and an unpredictable set of brackets and fasteners that costs more in shop time than the panel saved. On a hood or fender, the mounting flange is where a previous hit does its damage - and where a photo cannot show it.

We sell new aftermarket body parts only - no used, salvaged or reconditioned panels. Our parts are built to OEM fitment standards, designed to match OEM dimensions and mounting points, and shipped with the correct hardware.

Truck body repair: repair the panel or replace it?

For truck body repair decisions, four factors usually settle it:

• Size and depth of the damage. Surface scuffs and gelcoat damage away from stress points repair well; damage spanning a large area rarely does.
• Whether the mounting area is affected. If the hinge area, mounting flange or bolt bosses are cracked, a repaired panel will not hold alignment and will crack again.
• Structural deformation. If the underlying structure moved, panel work will not restore gaps and closing.
• Shop hours versus panel price. Fiberglass repair on a large panel is labor-intensive, and a truck in the shop is not earning.

The practical rule on fiberglass hoods and fenders: when the mounting zone is damaged, replacement is usually cheaper and more durable than repair. Cosmetic damage away from the mounts usually repairs.

Shipping oversized body parts

Hoods, bumpers, full fender assemblies and fairings are oversized freight. They exceed parcel carrier size and weight limits, so they move on a pallet or in a crate with a freight carrier. Freight carriers deliver to a commercial address with a dock or forklift by default. For a home address or a yard without equipment, you will need liftgate service arranged in advance, or you can collect the shipment at the carrier's terminal, which is often faster and cheaper. Freight is scheduled rather than dropped, so someone has to be there to receive it. At delivery, inspect before you sign. Walk the crate for punctured packaging, crushed corners and shifted contents, and write any damage on the delivery receipt. A clean signed receipt makes a claim much harder to pursue.

On our side: we ship in 24 hours, we crate and pack oversized panels for freight handling, and we ship throughout the United States and Canada.

Where to order replacement body parts

There are four realistic channels for Class 8 body parts: the dealer network, a specialized heavy-duty aftermarket supplier, general online marketplaces, and salvage yards or classified listings. Dealers carry genuine OEM parts at the longest lead times and highest prices, marketplaces are unpredictable on fitment support, and salvage carries the risks above. A specialized supplier sits in the middle: OEM-grade fitment, stock on the shelf, and a VIN check before the part ships.

That is what we do. Tacoma Parts Corporation has supplied aftermarket truck parts for semi-trucks only since 2012 - no pickup or passenger parts. We stock  Western Star, Kenworth, Freightliner, Volvo, Peterbilt, International and Mack

Frequently Asked Questions

How can I find replacement parts for my truck body?

Work through four steps in order. First, identify what you need. Second, record make, model and model year. Then confirm fitment against the VIN, specifying side and configuration, and plan for freight shipping - hoods, bumpers and fairings are oversized.

What is the difference between truck body parts and a truck body?

On a Class 8, truck body parts means the exterior panels of the truck itself: hood, fenders, bumper, fairings, side panels, grille, doors and mirrors. A truck body is a structure mounted on a chassis - a box, dump or service body - built by a separate manufacturer. Panels are matched by make, model, year and side. A mounted body is matched by the Body Serial Number on its data plate.

Do I need a VIN to order body parts for a semi-truck?

A VIN is not required, but it is the most reliable way to confirm a match before the part ships. At minimum we need make, model, model year, side, and configuration details such as fog light cutouts, air flow deflector provisions or sleeper length. The VIN resolves what those miss, especially on trucks built near a model refresh. Send yours and we will verify the part number before releasing the order.

Are aftermarket body panels as good as OEM?

Quality aftermarket panels are designed to match OEM dimensions and mounting points. OEM means the part carries the truck manufacturer's branding and comes through the dealer network, usually at a longer lead time and higher price. The aftermarket represents a supply channel rather, than a measure of quality, therefore, verifying compatibility prior to shipment is crucial. We sell new parts manufactured to OEM standards regarding mounting dimensions and installation.

How are large truck body parts shipped?

Hoods, bumpers, fairings and full fender assemblies ship by freight rather than parcel because of their size and weight. Carriers normally deliver to a commercial address with a dock or forklift; a residential delivery may need a liftgate or a terminal pickup. Inspect the crate and note any damage on the receipt before you sign, since a clean signed receipt makes a claim much harder. We ship in 24 hours across the United States and Canada.